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Segment Reporting and Concentrations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Segment reporting information
Revenues	$ 14,530	$ 13,694
Income (loss) before provision for income taxes	51	(479)
Total assets	48,876		$ 49,746
Goodwill	2,003	2,089	2,108	$ 2,050
Before Intersegment Eliminations [Member]
Segment reporting information
Income (loss) before provision for income taxes	51	(479)
After Intersegment Eliminations [Member]
Segment reporting information
Income (loss) before provision for income taxes	51	(479)
DDS [Member]
Segment reporting information
Revenues	10,409	10,177
Total assets	21,537		23,196
DDS [Member] \| Before Intersegment Eliminations [Member]
Segment reporting information
Income (loss) before provision for income taxes	129	74
DDS [Member] \| After Intersegment Eliminations [Member]
Segment reporting information
Income (loss) before provision for income taxes	59	12
Synodex [Member]
Segment reporting information
Revenues	1,282	1,024
Total assets	598		675
Synodex [Member] \| Before Intersegment Eliminations [Member]
Segment reporting information
Income (loss) before provision for income taxes	196	119
Synodex [Member] \| After Intersegment Eliminations [Member]
Segment reporting information
Income (loss) before provision for income taxes	241	159
Agility [Member]
Segment reporting information
Revenues	2,839	2,493
Total assets	26,741		25,875
Goodwill	2,003		$ 2,108
Agility [Member] \| Before Intersegment Eliminations [Member]
Segment reporting information
Income (loss) before provision for income taxes	(274)	(672)
Agility [Member] \| After Intersegment Eliminations [Member]
Segment reporting information
Income (loss) before provision for income taxes	$ (249)	$ (650)